Positive airway pressure apparatus



FIG. 1 is a perspective view of a positive airway pressure apparatus, in accordance with my new design;

FIG. 2 is a side elevation view of the design of FIG. 1;

FIG. 3 is a front elevation view of the design of FIG. 1;

FIG. 4 is a rear elevation view of the design of FIG. 1;

FIG. 5 is a top plan view of the design of FIG. 1; and,

FIG. 6 is a bottom plan view of the design of FIG. 1. 

The ornamental design for a positive airway pressure apparatus, as shown and described. 